Skip Navigation
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Your Environment. Your Health.

NHALES Study (Natural History of Asthma with Longitudinal Environmental Sampling)

Open for Recruitment

Study Background

The goal of the NHALES Study is to help scientists understand how bacteria and other factors in the environment affect people who have moderate to severe asthma. Individuals who are unable to receive adequate asthma treatment currently are encouraged to join NHALES, which also offers free doctor visits and asthma medications to study participants.

All NHALES visits will take place at the NIEHS Clinical Research Unit (CRU) in Research Triangle Park, North Carolina, and volunteers will be compensated for their time. Participants will have approximately 12 CRU visits over the course of the 5-year study.

During the visits, NHALES team members will talk to you about your medical history, collect samples from you (blood, sputum, house dust, saliva, urine, stool), ask you to complete questionnaires about your asthma, and conduct breathing tests and a physical exam. A small group of eligible participants will be invited to take part in a small sub-study that will examine the inside of the lungs using a procedure called bronchoscopy.

NHALES participants who experience asthma difficulties may come to the CRU and receive health care and medications at no cost.

For more information on this study, please visit the Clinical Trials Study webpage.

woman using an inhaler

Contact Information

For more information about this study, contact us here.

Principal Investigator

Stavros Garantziotis, M.D.
Stavros Garantziotis, M.D.
Medical Director, NIEHS Clinical Research Unit and Principal Investigator
Tel 984-287-4412
Fax 919-541-9854
garantziotis@niehs.nih.gov
P.O. Box 12233
Mail Drop CU-01
Durham, N.C. 27709
Back
to Top